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Synthesis and Lithium Ion Conductivities of Zirconium Phosphate-Based Solid Electrolytes

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Abstract:

The lithium ion conducting properties of lithium- and MⅣ (M = Al, In, Y)-doped zirconium pyrophosphates synthesized via solid state reaction were investigated. The ionic conductivity of the compounds increased with increasing Li content. The activation energy of LixMxZr1-xP2O7 decreased as the lattice parameter increased owing to the enlargement of the size of bottleneck between the cavities. Li0.55(Li0.15Y0.1Zr0.75)P2O7 with a high Li content and a large lattice parameter exhibited a conductivity of 1.7×10-3 S cm-1 at 350 °C, which is sufficient for its application as a solid electrolyte for sensors.

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Periodical:

Key Engineering Materials (Volume 445)

Pages:

105-108

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.445.105

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Online since:

July 2010

Authors:

Kazuto Ide, Shinya Suzuki, Masaru Miyayama

Keywords:

Lithium Ion Conductivity, Solid Electrolyte, Zirconium Phosphate

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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